These are roofing filters, they do not effect how narrow the bandwidth
can be adjusted. FWIW, I have both the 400 and 250 8 pole filters. If
money is an issue, I believe that there is very little bandwidth
difference between the two.
John KK9A
NJ Mike wrote:
If I understand it correctly, as you turn the bandwidth knob
counterclockwise, the filter narrows. At some point, it hits the next
roofing filter and then....narrows more? Just trying to understand so I can
get the right filters. Rig A (below) is what Elecraft recommends for my
operating profile.
What would be the difference between the following three examples, as far as
how narrow the bandwidth could actually be adjusted?
Rig A with 2.8, 2.1, 400, 250, 200 filters
Rig B with 2.8, 2.1, 400, 250 filters
Rig C with 2.8, 2.1, 400, 200 filters
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